CN109294134A - A kind of selfreparing hypersensitive conduction electrons skin sensor material and preparation method thereof - Google Patents
A kind of selfreparing hypersensitive conduction electrons skin sensor material and preparation method thereof Download PDFInfo
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- CN109294134A CN109294134A CN201811144156.1A CN201811144156A CN109294134A CN 109294134 A CN109294134 A CN 109294134A CN 201811144156 A CN201811144156 A CN 201811144156A CN 109294134 A CN109294134 A CN 109294134A
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- selfreparing
- hypersensitive
- skin sensor
- sensor material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/075—Macromolecular gels
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/18—Measuring force or stress, in general using properties of piezo-resistive materials, i.e. materials of which the ohmic resistance varies according to changes in magnitude or direction of force applied to the material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
Abstract
The invention belongs to sensor material technical fields, and in particular to a kind of selfreparing hypersensitive conduction electrons skin sensor material and preparation method thereof.Anthocyanidin is wrapped in surface of graphene oxide by this method, is then added in polyvinyl alcohol (PVA)/glycerine water solution and is uniformly mixed, after borax soln condenses, prepares selfreparing hypersensitive PVA hydrogel.The present invention enables PVA hydrogel to have ultrasensitiveness using graphene oxide/anthocyanidin compound, therefore can be used as a kind of selfreparing hypersensitive electronic skin sensor material.
Description
Technical field
The present invention relates to a kind of novel selfreparing electronic skin sensor materials, specifically, being to be related to a kind of selfreparing
Hypersensitive conduction electrons skin sensor material and preparation method thereof.
Background technique
Hydrogel (Hydrogel) is that a part of hydrophobic group will be introduced in the water soluble polymer for having cross-linked network
Hydrone is connected to netted inside by group and hydrophilic residue, hydrophilic residue and water molecules, and hydrophobic residue water-swellable
Cross-linked polymer.Hydrogel is a kind of macromolecule network system, and property is soft, is able to maintain certain shape, can be absorbed a large amount of
Water.Although there are many kinds of the materials for preparing hydrogel, polyvinyl alcohol (PVA) is always the preferred polymer for preparing hydrogel.
This is mainly due to PVA hydrogels other than having the performance of general hydrogel, especially has that toxicity is low, water absorption is high and biological
The advantages that compatibility is good, thus it is highly suitable as a kind of skin sensor material.
Currently, the PVA hydrogel mainly produced has the shortcomings that functionality is single.Therefore, in order to meet it is biomedical and
The widespread demand of industrial aspect, researching and developing, there is the PVA hydrogel of self-repairability, ultrasensitiveness to have great importance.
Summary of the invention
It is an object of the invention to provide a kind of selfreparing hypersensitive conduction electrons skin sensor materials and preparation method thereof.This
The deficiency that invention has a single function for current selfreparing PVA hydrogel, is prepared for graphene oxide/anthocyanidin compound first,
The compound is due to that can make PVA hydrogel have superpower electric conductivity comprising graphene oxide；The compound also includes flower
Green element, can make PVA hydrogel and graphene oxide crosslink effect, further enhance the conductive sensitivity of PVA hydrogel
Energy.
To achieve the purpose of the present invention, used technical solution is:
A kind of preparation method of selfreparing hypersensitive conduction electrons skin sensor material of the present invention, including walk as follows
It is rapid:
(1) preparation of anthocyanidin package graphene oxide:
It is added in 100ml water firstly, weighing graphene oxide, after being uniformly dispersed by ultrasonic treatment, anthocyanidin is added, and adjust
Solution ph is saved to 8, is stirred to react 8h at 60 DEG C；The finally isolated graphite oxide in 20000 revs/min of centrifuges
Alkene/anthocyanidin compound；The mass ratio of graphene oxide and anthocyanidin is 2:1.
(2) preparation of selfreparing hypersensitive conduction electrons skin sensor material:
Graphene oxide/anthocyanidin compound is added in 20ml glycerin/water solution (volume ratio of glycerol and water is 9:1),
It is uniformly dispersed by ultrasonic treatment, polyvinyl alcohol (PVA) then is added, being heated to 95 DEG C is completely dissolved PVA；Finally it is added dropwise 5
After ml 5wt% borax soln, selfreparing hypersensitive electronic skin sensor material is prepared；Graphene oxide and polyethylene
The mass ratio of alcohol is 1:30.
The mass concentration of the PVA is 5-30%, and preferred mass concentration is 15%.
The graphene oxide/anthocyanidin compound mass concentration is 5-40%.
Compared with the existing technology, the present invention has the advantage that
Polyvinyl alcohol (PVA) is a kind of extremely safe macromolecule organic, nontoxic to the human body, without side-effects, has good life
Object compatibility, being widely used in terms of ophthalmology, wound dressing and joint prosthesis such as its aqueous gel especially in medical treatment,
Simultaneously in polyvinyl alcohol film in medicinal film, artificial kidney film etc. also has use.Due to having many in polyvinyl alcohol structures
Hydrogenbond can be prepared into selfreparing hydrogel.Due to including multiple phenolic hydroxyl groups in the chemical structure of anthocyanidin, have outstanding
It is chemically crosslinked performance.And graphene oxide electric conductivity with super strength.In the present invention by utilizing graphene oxide/cyanine
Plain compound assigns PVA selfreparing hydrogel hypersensitive electric conductivity.
Detailed description of the invention
Fig. 1 selfreparing hypersensitive conduction electrons skin sensor material monitors human skin；
The ultrasensitiveness energy of Fig. 2 selfreparing hypersensitive conduction electrons skin sensor material；
The self-healing properties of Fig. 3 selfreparing hypersensitive conduction electrons skin sensor material.
Specific embodiment
The method of the present invention is described in further detail below with reference to embodiment.It should be strongly noted that of the invention
Protection scope should include but is not limited to technology contents disclosed in the present embodiment.
Embodiment 1
(1) preparation of anthocyanidin package graphene oxide:
It is added in 100ml water firstly, weighing 0.1 g graphene oxide, after being uniformly dispersed by ultrasonic treatment, 0.05 g is added
Anthocyanidin, and solution ph is adjusted to 8,8h is stirred to react at 60 DEG C；Finally separated in 20000 revs/min of centrifuges
To graphene oxide/anthocyanidin compound.
(2) preparation of selfreparing hypersensitive conduction electrons skin sensor material:
By 0.15 g graphene oxide/anthocyanidin compound be added to 20ml glycerin/water solution (volume ratio of glycerol and water be 9:
1) it in, is uniformly dispersed by ultrasonic treatment, 3 g polyvinyl alcohol (PVA) is then added, being heated to 95 DEG C is completely dissolved PVA；Most
After 5 ml 5wt% borax solns are added dropwise after, selfreparing hypersensitive electronic skin sensor material is prepared.
Embodiment 2
(1) preparation of anthocyanidin package graphene oxide:
It is added in 100ml water firstly, weighing 0.2 g graphene oxide, after being uniformly dispersed by ultrasonic treatment, 0.1 g is added
Anthocyanidin, and solution ph is adjusted to 8,8h is stirred to react at 60 DEG C；Finally separated in 20000 revs/min of centrifuges
To graphene oxide/anthocyanidin compound.
(2) preparation of selfreparing hypersensitive conduction electrons skin sensor material:
By 0.3 g graphene oxide/anthocyanidin compound be added to 20ml glycerin/water solution (volume ratio of glycerol and water be 9:
1) it in, is uniformly dispersed by ultrasonic treatment, 6 g polyvinyl alcohol (PVA) is then added, being heated to 95 DEG C is completely dissolved PVA；Most
After 5 ml 5wt% borax solns are added dropwise after, selfreparing hypersensitive electronic skin sensor material is prepared.
Embodiment 3
(1) preparation of anthocyanidin package graphene oxide:
It is added in 100ml water firstly, weighing 0.3 g graphene oxide, after being uniformly dispersed by ultrasonic treatment, 0.15 g is added
Anthocyanidin, and solution ph is adjusted to 8,8h is stirred to react at 60 DEG C；Finally separated in 20000 revs/min of centrifuges
To graphene oxide/anthocyanidin compound.
(2) preparation of selfreparing hypersensitive conduction electrons skin sensor material:
By 0.45 g graphene oxide/anthocyanidin compound be added to 20ml glycerin/water solution (volume ratio of glycerol and water be 9:
1) it in, is uniformly dispersed by ultrasonic treatment, 9 g polyvinyl alcohol (PVA) is then added, being heated to 95 DEG C is completely dissolved PVA；Most
After 5 ml 5wt% borax solns are added dropwise after, selfreparing hypersensitive electronic skin sensor material is prepared.
Performance test
The selfreparing hypersensitive conduction electrons skin sensor material is used to monitor human skin, as shown in Figure 1.It can see
Out, which is laid in the skin surface of people, after squeezing skin, change dramatically occurs for the resistance of the material.Illustrate this
The variation in the materials on skin external world is very sensitive, therefore the material is highly suitable as a kind of novel hypersensitive conduction electrons skin
Sensor.In addition, also can be carried out measurement to the ultrasensitiveness of the material, as a result as shown in Figure 2, it can be seen that the rule of the material
Lattice factor reaches 14.14, shows that the material has very high sensitivity to external world's variation.Finally, being investigated the material
Self-healing properties, as shown in Figure 3.As can be seen that by the material after repeatedly cutting off, moreover it is possible to success selfreparing, and restore it
Electric conductivity shows that the material has outstanding self-healing properties.
Claims (7)
1. a kind of preparation method of selfreparing hypersensitive conduction electrons skin sensor material, it is characterised in that: by anthocyanidin packet
It is rolled in surface of graphene oxide, is then added in PVAC polyvinylalcohol/glycerine water solution and is uniformly mixed, it is solidifying by borax soln
After knot, selfreparing hypersensitive PVA hydrogel is prepared.
2. a kind of preparation method of selfreparing hypersensitive conduction electrons skin sensor material according to claim 1,
It is characterized in that: including the following steps:
(1) preparation of anthocyanidin package graphene oxide:
It is added in 100ml water firstly, weighing graphene oxide, after being uniformly dispersed by ultrasonic treatment, 0.05 g cyanine is added
Element, and solution ph is adjusted to 8,8h is stirred to react at 60 DEG C；The finally isolated oxygen in 20000 revs/min of centrifuges
Graphite alkene/anthocyanidin compound；
(2) preparation of selfreparing hypersensitive electronic skin sensor material:
Graphene oxide/anthocyanidin compound is added in 20ml glycerin/water solution, is uniformly dispersed by ultrasonic treatment, so
After PVAC polyvinylalcohol is added, being heated to 95 DEG C is completely dissolved PVA；After 5 ml 5wt% borax solns are finally added dropwise, it is prepared into
To selfreparing hypersensitive electronic skin sensor material.
3. a kind of preparation method of selfreparing hypersensitive conduction electrons skin sensor material according to claim 2,
Be characterized in that: the mass ratio of step (1) graphene oxide and anthocyanidin is 2:1.
4. a kind of preparation method of selfreparing hypersensitive conduction electrons skin sensor material according to claim 2,
Be characterized in that: it is 9:1 that glycerin/water solution, which is the volume ratio of glycerol and water, in step (2)；The matter of graphene oxide and polyvinyl alcohol
Amount is than being 1:30.
5. a kind of preparation method of selfreparing hypersensitive conduction electrons skin sensor material according to claim 2,
Be characterized in that: the graphene oxide/anthocyanidin compound mass concentration is 5-30%.
6. a kind of selfreparing hypersensitive conduction electrons skin sensor material according to claim 2 and preparation method thereof,
It is characterized by: the mass concentration of the PVA is 5-30%.
7. a kind of selfreparing hypersensitive conduction electrons skin sensor material prepared such as any one of claim 1 ~ 6 the method
Material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811144156.1A CN109294134A (en) | 2018-09-29 | 2018-09-29 | A kind of selfreparing hypersensitive conduction electrons skin sensor material and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974905A (en) * | 2019-04-03 | 2019-07-05 | 南开大学 | A kind of strain gauge and preparation method thereof with self-reparing capability |
| CN110054856A (en) * | 2019-04-22 | 2019-07-26 | 常州大学 | The preparation method and applications of low temperature resistant self-healing hydrogel |
| CN111355402A (en) * | 2020-03-16 | 2020-06-30 | 北京理工大学 | High-output self-healing single-electrode friction nano generator and preparation method thereof |
| CN111505089A (en) * | 2020-04-24 | 2020-08-07 | 电子科技大学 | Sulfur dioxide sensor based on organic field effect transistor and preparation method thereof |
| CN113476644A (en) * | 2021-07-13 | 2021-10-08 | 西安建筑科技大学 | Schiff base conjugated carbon nitride wound dressing and preparation method thereof |
| CN113773524A (en) * | 2021-08-23 | 2021-12-10 | 武汉工程大学 | Polypyrrole/polyvinyl alcohol composite gel and preparation method thereof |
| CN113943427A (en) * | 2021-09-30 | 2022-01-18 | 天津理工大学 | Preparation method of low-temperature-resistant and dehydration-resistant conductive hydrogel and strain sensor thereof |
| WO2022262349A1 (en) * | 2021-06-15 | 2022-12-22 | 山东理工大学 | Multifunctional bio-based wearable sensing gel and preparation method therefor |
-
2018
- 2018-09-29 CN CN201811144156.1A patent/CN109294134A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974905A (en) * | 2019-04-03 | 2019-07-05 | 南开大学 | A kind of strain gauge and preparation method thereof with self-reparing capability |
| CN110054856A (en) * | 2019-04-22 | 2019-07-26 | 常州大学 | The preparation method and applications of low temperature resistant self-healing hydrogel |
| CN110054856B (en) * | 2019-04-22 | 2022-01-25 | 常州大学 | Preparation method and application of low-temperature-resistant self-healing hydrogel |
| CN111355402A (en) * | 2020-03-16 | 2020-06-30 | 北京理工大学 | High-output self-healing single-electrode friction nano generator and preparation method thereof |
| CN111355402B (en) * | 2020-03-16 | 2021-06-25 | 北京理工大学 | High-output self-healing single-electrode friction nano generator and preparation method thereof |
| CN111505089A (en) * | 2020-04-24 | 2020-08-07 | 电子科技大学 | Sulfur dioxide sensor based on organic field effect transistor and preparation method thereof |
| CN111505089B (en) * | 2020-04-24 | 2021-08-10 | 电子科技大学 | Sulfur dioxide sensor based on organic field effect transistor and preparation method thereof |
| WO2022262349A1 (en) * | 2021-06-15 | 2022-12-22 | 山东理工大学 | Multifunctional bio-based wearable sensing gel and preparation method therefor |
| CN113476644A (en) * | 2021-07-13 | 2021-10-08 | 西安建筑科技大学 | Schiff base conjugated carbon nitride wound dressing and preparation method thereof |
| CN113773524A (en) * | 2021-08-23 | 2021-12-10 | 武汉工程大学 | Polypyrrole/polyvinyl alcohol composite gel and preparation method thereof |
| CN113943427A (en) * | 2021-09-30 | 2022-01-18 | 天津理工大学 | Preparation method of low-temperature-resistant and dehydration-resistant conductive hydrogel and strain sensor thereof |
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Application publication date: 20190201 |